TPA6130A2 Datasheet, PDF (1/39 Pages) Texas Instruments – 138-mW DIRECTPATH STEREO HEADPHONE AMPLIFIER WITH I2C VOLUME CONTROL

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TPA6130A2
SLOS488F – NOVEMBER 2006 – REVISED MARCH 2015
TPA6130A2 138-mW DIRECTPATH™ Stereo Headphone Amplifier with I²C Volume Control
1 Features
•1 DirectPath™ Ground-Referenced Outputs
– Eliminates Output DC Blocking Capacitors
– Reduces Board Area
– Reduces Component Height and Cost
– Full Bass Response Without Attenuation
• Power Supply Voltage Range: 2.5 V to 5.5 V
• 64 Step Audio Taper Volume Control
• High Power Supply Rejection Ratio
(>100 dB PSRR)
• Differential Inputs for Maximum Noise Rejection
(68 dB CMRR)
• High-Impedance Outputs When Disabled
• Advanced Pop and Click Suppression Circuitry
• Digital I²C Bus Control
– Per Channel Mute and Enable
– Software Shutdown
– Multi-Mode Support: Stereo HP, Dual Mono
HP, and Single-Channel BTL Operation
– Amplifier Status
• Space Saving Packages
– 20 Pin, 4 mm x 4 mm QFN
– 16 ball, 2 mm x 2 mm DSBGA
• ESD Protection of 8 kV HBM and IEC Contact
2 Applications
• Mobile Phones
• Portable Media Players
• Notebook Computers
• High Fidelity Applications
3 Description
The TPA6130A2 is a stereo DirectPath™ headphone
amplifier with I²C digital volume control. The
TPA6130A2 has minimal quiescent current
consumption, with a typical I_DD of 4 mA, making it
optimal for portable applications. The I²C control
allows maximum flexibility with a 64 step audio taper
volume control, channel independent enables and
mutes, and the ability to configure the outputs into
stereo, dual mono, or a single receiver speaker BTL
amplifier that drives 300 mW of power into 16 Ω
loads.
The TPA6130A2 is a high fidelity amplifier with an
SNR of 98 dB. A PSRR greater than 100 dB enables
direct-to-battery connections without compromising
the listening experience. The output noise of 9 μVrms
(typical A-weighted) provides a minimal noise
background during periods of silence. Configurable
differential inputs and high CMRR allow for maximum
noise rejection in the noisy environment of a mobile
device.
TPA6130A2 packaging includes a 2 by 2 mm chip-
scale package, and a 4 by 4 mm QFN package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPA6130A2
WQFN (20)
DSBGA (16)
4.00mm x 4.00mm
2.00mm x 2.00mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
Audio Source
Left Out M
Left Out P
Right Out M
Right Out P
2
IC
GPIO
0.47 mF
0.47 mF
0.47 mF
0.47 mF
SD
LEFTINM
LEFTINP
RIGHTINM
RIGHTINP
SCL SDA
TPA6130A2
HPLEFT
HPRIGHT
GND
GND
CPP CPN CPVSS VDD VDD
1 mF
1 mF
1 mF 1 mF
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.